Non-Diagonal and Mixed Squark Production at Hadron Colliders

Details Non-Diagonal and Mixed Squark Production at Hadron Colliders Non-Diagonal and Mixed Squark Production at Hadron Colliders

2005-07-06

arxiv.org/abs/hep-ph/0507073v1

Phys.Rev.D72:035016,2005

Physics

High Energy Physics

High Energy Physics - Phenomenology

22 pages, 11 figures

Scientific paper

10.1103/PhysRevD.72.035016

We calculate squared helicity amplitudes for non-diagonal and mixed squark pair production at hadron colliders, taking into account not only loop-induced QCD diagrams, but also previously unconsidered electroweak channels, which turn out to be dominant. Mixing effects are included for both top and bottom squarks. Numerical results are presented for several SUSY benchmark scenarios at both the CERN LHC and the Fermilab Tevatron, including the possibilities of light stops or sbottoms. The latter should be easily observed at the Tevatron in associated production of stops and sbottoms for a large range of stop masses and almost independently of the stop mixing angle. Asymmetry measurements for light stops at the polarized BNL RHIC collider are also briefly discussed.

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